Eccentric driving mechanism for power washing machines



June 14, 1927. 1,632,118

H. J. CRINER ECCENTRIC DRIVING MECHANISM FOR POWER WASHING MACHINES Fil ed Sept. 10, 1925 Sheets-Shae} 1 fa /e520? f/AR/i V c]; CRIME/i 7 96M Mgg;

Patent ed Jun e 14, 1927.

. UNITEDJIJSTATES,

" PATENT or P c-E.

HARRY J; CRINER, or CLARINDA,1IOWA, FA'SSIGNOR TooLAR'INnA MANUFACTURING COMPANY, orcLAnmnA, Iowa, A CORPORATION OF- row-A.

EGCEN'IRIC DRIVING MECHANISM FOR WASHING MACHINES.

, Application filed September :10, 1925. serial No. 55,497. i

The object of this invention is to provide" an improved driving mechanism,including I a pair of oppositely ar-ranged eccentrics,

especially designed for 'use 'on power Wash-l provide an improved bearing'fmeans for a .followeradapted for rotary. oscillation and fol-sliding movement, together with means for adjusting said bearing laterally relative 5 to the driving mechanism. p V A further object ofthis invention is to providean-oil troug (v adjacent ,the bearing means ofthe follower.

A further object is to provide, improved ,means of securing the eccentric straps around the eccentrics. v

u These and'other objects will be apparent. to those skilled in the art.

Wly invention consists in the construction, arrangement and combination of the various parts ofthe device, whereby the objects con-Q.

templated are attained as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying draW-,

ings, in which, H

' Fig. 1 is a plan view, partly in'section, of mydevice mounted on a washingmachine, the covers of the gear housing and eccentric housing being partly removed. Fig. 2 is a sectional elevation ofthe samesubstanti'ally.

on the line 22 of Fig. 1. Fig. 3 isa perspective View of the ,slide'bearing member of the follower. Fig. llis a perspective View of the clamp used to secure .thegecoentric straps around the eccentrics. a 1 V In the construction and mounting of the inechanism as-shown the numeral 10 desig nates a suitablesupportsuch as the tub of a washing machine, formed with a fixed cover member 11 and amova-ble cover member12 adapted to overlie the major portion of the tub. A supporting plate 13 is mounted on and suitablyfixed to the fiztedcovermember 11 and said plate is formed with an integral upstanding bearing bracket 14 1 between its :ends. it driving-shaft 15 is ,journaled for rotation in the bearingbracket Hand other bearingmeans hereinafter described, extends longitudinally of andabovethe fixed cover member 11 and plate'13. Hinge members 16 and 17 are secured to the top of the movable cover member 12, extend upwardly and outwardly beyond the margin of said cover nember and have bearings at theiropposite ends on the driving shaft 15. .Thus a pivotal connection of the cover member 12 articulation being removed laterally and vertically from the joint line between thecover members 11, 12. Any suitable means may be employed tolimit outward movement of the cover member 12 on its hinged supports.

A motor 18 is mounted at the side of and near theltop of the tub'lO by suitable brackets, This motor is connected to the rotatable shaft 15" by a'train ofspur gears which I have designated by the numeral 19.

These gears are so designed and arranged. that the shaft 15 is relatively rotatedat a .muchless speed than that of the motor. The numeral 20 designatesa housing around the gears 19. p v

' An eccentric housing 21,provided with a to the support is established, "the'axis of 'i removablecoverQQ, is mounted transversely of the supporting plate13 and extends past the center of the tub 10 and movable cover member 12, to which it is attached by means of bolts 23,01 the like. The outerend portion of the eccentric housing is substantially circular in-form, concentric with the shaft 15, free from attachmentto the plate 13 or fixed cover member 11,. and is movable around said shaft when the movable cover member 12is moved through an arc to or from open position. The eccentric housing 21 is spaced from the gear housing 20 by a bearing sleeve 24 ;on the shaft 15. Loosely -mountedon the shaft 15 'withinzthe housing 21' visan eccentricgsleeye 25 onwhich arev formed spaced parallel disks I26 and 27, arranged eccentrically of the shaft and oppositely to one ;another,-in such manner that the fore eccentric of one disk corresponds to the back-eccentric of'theother. One end portion of the sleeve 25 extends through the housing 2-1,.at that side opposite the gear housing iQOand is; designed to engage clutch mechanism at times inside the clutch housing 28, said clutch member being a feathered on the shaft 15. This clutch mechanism may be placed in operative engagement with the sleeve 25, or out of operative engagement by manual oscillation of the lever 29.

- A follower device is mounted at the center The numeral 34 designates a projection on this bearing member, pointing toward the shaft 15.

Extending vertically through this projection is a slot 35 designed to receive the bolt 36. This bolt extends also through a hole in the housing 21. The numeral 37 designates a set screw, screwed into the housing 21and designed to engage the forward end of the projection 34. By this arrangement when the bolt 36 is loosened the bearing member 33 may be moved a certain distance toward or from the shaft when the set screw 37 is screwed in or out, the purpose of which will be hereinafter understood. The bearing member 33 is held in any. desired position by tightening the bolt and screwing the set screw in the housing until it engages the projection. Journaled in and eX- tending through the bearing member 33 is a slide bearing member 38 of tubular form and designedfor rotary oscillation, said slide bearing being formed with a vertical aperture fitted to and 'slidingly receiving the dolly shaft whereby said shaft is ar-' ranged for oscillation with and for vertical sliding movement relativeto said bearing.

The slide bearing 38 is formed near its 'up' per end with a peripheral flange 39 or shoulder resting on the top of the bearing member 33. The slide bearing '38 projects through a slot 40 in the cover 22 of the eccentric housing and a head 41 is fixed to the upper end of the dolly shaft 30 and normally rests on the upper end of said slide bearing, but at times, as when the dolly de vice 31 is elevated by and rests upon a load in the tub, said head may be spaced above said slide hearing. The numeral 4-2 designates sprocket teeth arranged peripherally on the slide bearingand located just above the peripheral flange 39. At the rear of the bearing member 33 or on the side opposite the projection 34 is an oil trough 43 co1nmunicating withthe slide bearing 38.

The numeral 44 designates a sprocket chain which engages near its cent-er the sprocket teeth on the slide bearing 38. This chain is pivotally connected at its ends to the eccentric rods 45 and 46 located within the housing 21 and said rods are formed with integral eccentric straps 47 and 48 embracing the eccentrics 26 and 27 respectively. The eccentric straps 47 and 48 have their free ends connected to the straps 45 and 46 by means of sleeves or clamps 49, (see Fig. 4) and bolts 50. These sleeves slip on the rods and and over the free ends of the eccentric straps and thereby hold those two members closely together. In each side of these sleeves ahole and through which extends the bolt 50. As the free ends of the eccentric straps and the eccentric rods are very close together a notch or portion of each must be cut away to allow the bolt to pass through. By this arrangement not only are the sleeves securely clamped on the free ends of the eccentric straps and the rods, but the free ends of the eccentric straps are always held in proper position and are prevented from pulling out of the sleeves, or tightening on the eccentrics and binding.

The chain may be tightened by moving the bearing member 33 forward or backward as heretofore explained.

The rods 45 and 46 and the straps 47 and 48 are preferably circular in cross-section and the eccentrics 26 and 27 are peripherally grooved to receive said straps. When the shaft 15 is operated and the member 25 is in engagement with the clutch, alternatingrotary motion is imparted to the slide bearing 38 and to the dolly shaft 30 and devices carried thereby by alternate draft in opposite directions on the chain 44, through the lUO oppositely arranged eccentrics 26 and 27, j

eccentric straps 47 and 48 and eccentric rods" 45 and 46. The operation of the dolly devices in this manner is very quiet as there are no intermeshing gears between the dri ing shaft and dolly shaft, few places where friction can occur, and a small number of movable parts. I

The moving parts are all enclosed, and ample provision is made for lubricating them. The circular outer end portion of the eccentric housing 21 forms a reservoir for lubricant, into which the eccentrics 26 and 27 dip as they are rotated.

I claim as my invention- 7 LA driving mechanism, comprising a support, a driving member journaled on said support and formed with oppositely arranged eccentrics, a housing enclosing said eccentrics and extending at right angles to said driving member, a bearing member mounted in said housing, a slide bearing ar-' ranged for rotary oscillation in said bearing member and formed with a peripheral flange resting thereon, a follower shaft arranged for sliding movement in and oscillation with said slide bearing, sprocket teeth arranged peripherally on said slide bearing immediately above said flange, a chain engaging said teeth near its center, and driving connections between the ends of said chain and the respective eccentrics, for the purposes stated. I

2. A driving mechanism, comprising a support, a driving member journaled on said support and formed withoppositely arranged eccentrics, a housing enclosing said eccentrics and extending at right angles to said driving member, a bearing member mounted in said housing, a slide bearing arranged for-rotary oscillation in said bearing member and having a peripheral flange resting thereon, a follower shaft arranged for' sliding movement in and oscillation with said slide bearing, sprocket teeth onsaid slide bearing immediately above said flange,

a chain engaging said teeth near itscente rf 'With said slide bearing, for vthe purposes stated.

Signed at Clarindapin the county of Page and State of Iowa, this 11th day of May, 1925, i

HARRY J. 'CRINER. i 

